Anggota PERTAMISI
PT. Anugerah Watu Rejeki
PT. Perkasa Parama Biliton
PT. Perkasa Parama Borneo
PT. Silica Minsources Jaya
PT. Hademineral Uluna Jaya
PT. Pandasa Minera Energindo
PT. Suna Beting Sentosa
PT. Sumberindo Makmur Silika
PT. Wijaya Silika Mining
PT. Pasir Alam Nusantara Jaya
PT. Karunia Hosana
PT. Kemilau Nusantara Mineralindo
PT. Minevesting Silica Groupa
PT. Indo Base Network
PT. Mitra Pelayaran Nusantara
PT. Catur Bintang Sejahtera
PT. Belitung Sand Mining
PT. Kurnia Mandiri Adi Perkasa
CV. Fajar Putih
PT. Bintang Mandiri Perkasa
PT. Timah Investasi Mineral
PT. Bintang Mandiri Pratama
PT. Silika Timur Abadi Lampung
PT. Mineral Heksagon Kuarsa
PT. Teluk Energi Baru
PT. Kepri Samudra Harapan
PT. Harum Bumi Kepri
PT. Duta Makin Jaya
PT. Maritim Energi Indonesia
PT. Kepri Samudra Harapan
PT. Sinar Harum Kepri
PT. Putra Asli Selpa
PT. Sunan Indo Gemilang
